Scratchy sound on certain notes right side only?


What could cause a "scratchy" sound on certain notes at certain volume, be it voice, piano, but especially with saxophone, right side only? I have switched cables, no luck. Checked all connections. I know its not the speakers because if I switch l/r cables from the phone preamp out the noise comes from the left speaker. Equipment is jr michell orbe with sme iv.iv arm & clearaudio virtuoso cartridge. Tracking force etc seems to be right on. Any help would be appreciated.
Thanks
yohjo

Showing 2 responses by newbee

You've got a lot of tubes in the chain. Any chance you have an intermittently noisy tube? Might try reversing the small tubes in your pre-amp and your amp - see what happens. If it reverses channels you've found your problem.
Yohjo, Agreed if no other sources produce the problem it has to be in the phono stage. Doesn't your EAR phono-pre have tubes? Are you still using that - its listed in your systems? If you are, check the tubes. :-)